A. Fibrosarcoma are malignant tumors that usually tend to spread locally and are unfortunately quite aggressive. Surgical excision and total remission is possible but it would depend on the extension of the tumor (especially how deep it is) and the extension of the surgery performed by your veterinarian. Fibrosarcoma tend to come back quite often though. Other therapies are possible like radiotherapy.
I would recommend to wait for the results first and then discuss thoroughly with your veterinarian all the therapeutic options.
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